home: hub: mkinitfs

Info  •  Files  •  Log

mkinitfs: allow specifying compression level

(and perhaps injecting more options)

the defaults are taken from before:

gzip: -9 -> -9
xz: unspecified (-1)! -> -9
zstd: -19 -> -19
lz4: --best(-12) -> -12

--- a/mkinitfs.in

+++ b/mkinitfs.in

@@ -297,11 +297,16 @@

 	echo "==> initramfs: creating $outfile"

 fi

+complevel_gzip="${complevel_gzip:--9}"

+complevel_xz="${complevel_xz:--9}"

+complevel_zstd="${complevel_zstd:--19}"

+complevel_lz4="${complevel_lz4:--12}"

+

 case "$initfscomp" in

-	gzip) comp="$(command -v pigz 2>/dev/null || echo gzip) -9" ;;

-	xz) cmd_exists xz; comp="xz -C crc32 -T 0" ;;

-	zstd) cmd_exists zstd; comp="zstd -T0 -19" ;;

-	lz4) cmd_exists lz4; comp="lz4 --favor-decSpeed --best -lz" ;;

+	gzip) comp="$(command -v pigz 2>/dev/null || echo gzip) $complevel_gzip" ;;

+	xz) cmd_exists xz; comp="xz -C crc32 -T0 $complevel_xz" ;;

+	zstd) cmd_exists zstd; comp="zstd -T0 $complevel_zstd" ;;

+	lz4) cmd_exists lz4; comp="lz4 --favor-decSpeed -lz $complevel_lz4" ;;

 	none) comp="cat";;

 	*) echo "Initramfs compression \"$initfscomp\" not supported!"; exit 1 ;;

 esac